Re: [R] Create Strings of Column Id's
Great, That did the trick,thanks.
regards Tom
jholtman wrote:
Is this what you want:
paste(-, paste(colnames(MyMatrix)[COL], collapse='-'), sep='')
[1] -E-T
On 7/26/07, Tom.O [EMAIL PROTECTED] wrote:
Does anyone know how this is don?
I have a large matrix where I extract specific columns into txt files for
further use. To be able to keep track of which txt files contain which
columns I want to name the filenames with the column Id's.
The most basic example would be to use an for() loop together with
paste(),
but the result is blank. Not even NULL.
this is the concept of thecode i use:
for example
MyMatrix -
matrix(NA,ncol=4,nrow=1,dimnames=list(NULL,c(E,R,T,Y)))
COL - c(1,3) # a vector of columns I want to extract,
Filename - NULL # the starting variable, so I can use paste
Filename - for(i in colnames(MyMatrix)[COL])
{paste(Filename,-,i,sep=)}
The result is -T, but I want it to be -E-T
Anyone have a clue?
Thanks Tom
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--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem you are trying to solve?
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and provide commented, minimal, self-contained, reproducible code.
--
View this message in context:
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Sent from the R help mailing list archive at Nabble.com.
__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Create Strings of Column Id's
Is this what you want:
paste(-, paste(colnames(MyMatrix)[COL], collapse='-'), sep='')
[1] -E-T
On 7/26/07, Tom.O [EMAIL PROTECTED] wrote:
Does anyone know how this is don?
I have a large matrix where I extract specific columns into txt files for
further use. To be able to keep track of which txt files contain which
columns I want to name the filenames with the column Id's.
The most basic example would be to use an for() loop together with paste(),
but the result is blank. Not even NULL.
this is the concept of thecode i use:
for example
MyMatrix - matrix(NA,ncol=4,nrow=1,dimnames=list(NULL,c(E,R,T,Y)))
COL - c(1,3) # a vector of columns I want to extract,
Filename - NULL # the starting variable, so I can use paste
Filename - for(i in colnames(MyMatrix)[COL]) {paste(Filename,-,i,sep=)}
The result is -T, but I want it to be -E-T
Anyone have a clue?
Thanks Tom
--
View this message in context:
http://www.nabble.com/Create-Strings-of-Column-Id%27s-tf4153354.html#a11816439
Sent from the R help mailing list archive at Nabble.com.
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem you are trying to solve?
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] Create Strings of Column Id's
Does anyone know how this is don?
I have a large matrix where I extract specific columns into txt files for
further use. To be able to keep track of which txt files contain which
columns I want to name the filenames with the column Id's.
The most basic example would be to use an for() loop together with paste(),
but the result is blank. Not even NULL.
this is the concept of thecode i use:
for example
MyMatrix - matrix(NA,ncol=4,nrow=1,dimnames=list(NULL,c(E,R,T,Y)))
COL - c(1,3) # a vector of columns I want to extract,
Filename - NULL # the starting variable, so I can use paste
Filename - for(i in colnames(MyMatrix)[COL]) {paste(Filename,-,i,sep=)}
The result is -T, but I want it to be -E-T
Anyone have a clue?
Thanks Tom
--
View this message in context:
http://www.nabble.com/Create-Strings-of-Column-Id%27s-tf4153354.html#a11816439
Sent from the R help mailing list archive at Nabble.com.
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
